From Amazon
Kanto YU Passive 4" Bookshelf Speakers with 1" Silk Dome Tweeter | External Amplifier Required | 70W Power Handling | Matte White | Pair
Electricshop
Kanto YU Passive 4 inch Bookshelf Speakers Matte White
Gear 4 Music
Kanto YU Passive 4'' Bookshelf Speakers - Matte White